Copyright © 2013 Future Technology Devices International Limited

4

DS_FT312D USB ANDROID HOST IC Datasheet

Version 1.1

Document No.: FT_000816 Clearance No.: FTDI# 331

Table of Contents

1

Typical Applications...................................................................... 2

1.1

Part Numbers ..................................................................................... 2

1.2

USB Compliant .................................................................................... 2

2

FT312D Block Diagram ................................................................. 3

3

Device Pin Out and Signal Description.......................................... 6

3.1

Package Symbol.................................................................................. 6

3.1.1

Package PinOut Description...........................................................................................6

4

Function Description..................................................................... 8

4.1

Key Features....................................................................................... 8

4.2

Functional Block Descriptions ............................................................. 8

4.2.1

UART Interface Module .................................................................................................8

4.2.2

Buffers .......................................................................................................................8

4.2.3

USB Host ....................................................................................................................8

4.2.4

USB Transceivers.........................................................................................................8

4.3

Default Descriptor Strings .................................................................. 8

5

UART Interface........................................................................... 10

6

USB Error Detection.................................................................... 12

7

Absolute Maximum Ratings ........................................................ 13

7.1

DC Characteristics .............................................................................14

7.2

ESD and Latch-up Specifications........................................................15

8

Application Examples ................................................................. 16

8.1

USB to UARTConverter.......................................................................16

8.2

USB to RS232 Converter ....................................................................17

9

Package Parameters................................................................... 18

9.1

FT312D Package Markings .................................................................18

9.1.1

QFN-32 .................................................................................................................... 18

9.1.2

LQFP-32 ................................................................................................................... 19

9.2

FT312DPackage Dimensions ..............................................................20

9.2.1

QFN-32 Package Dimensions ....................................................................................... 20

9.2.2

LQFP-32 Package Dimensions...................................................................................... 21

9.3

Solder Reflow Profile .........................................................................22

10

Contact Information ................................................................... 24

Appendix A – References ............................................................................25

Appendix B - List of Figures and Tables ......................................................26

Appendix C - Revision History.....................................................................27